From owner-freebsd-current@FreeBSD.ORG Wed May 27 19:07:42 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AC4181065709; Wed, 27 May 2009 19:07:42 +0000 (UTC) (envelope-from dwmalone@maths.tcd.ie) Received: from salmon.maths.tcd.ie (salmon.maths.tcd.ie [IPv6:2001:770:10:300::86e2:510b]) by mx1.freebsd.org (Postfix) with SMTP id A44C58FC32; Wed, 27 May 2009 19:07:41 +0000 (UTC) (envelope-from dwmalone@maths.tcd.ie) Received: from walton.maths.tcd.ie ([134.226.81.10] helo=walton.maths.tcd.ie) by salmon.maths.tcd.ie with SMTP id ; 27 May 2009 20:07:40 +0100 (BST) Date: Wed, 27 May 2009 20:07:38 +0100 From: David Malone To: Julian Elischer Message-ID: <20090527190738.GB17312@walton.maths.tcd.ie> References: <20090527103648.GA61454@ebi.local> <20090527111238.GA2000@freebsd.org> <20090527113351.GA61692@ebi.local> <4A1D70FB.6060009@elischer.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4A1D70FB.6060009@elischer.org> User-Agent: Mutt/1.5.6i Sender: dwmalone@maths.tcd.ie Cc: Nick Barkas , Roman Divacky , "freebsd-current@freebsd.org" Subject: Re: vm_lowmem event handler for dirhash X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 May 2009 19:07:44 -0000 On Wed, May 27, 2009 at 09:57:31AM -0700, Julian Elischer wrote: > I was initially impressed by the numbers until I saw the scales.. > a difference between 475.5 and 474 is not that significant, but if > your graph scale is from 473 to 477, it looks at first glace very > impressive. I think we felt the real gains here would be the ability to set the dirhash memory limits to a much larger value without having to worry about it chewing all your memory. The results basically confirm that we haven't introduced any serious regressions ;-) David.